New York State Bridge Authority Inspections

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Overview

The New York State Bridge Authority does more than maintain the safety and function of six Hudson River crossings. They have to maintain public confidence in the bridges as well. For both responsibilities they depend on Modjeski and Masters.

The NYSBA understands the need for proactive bridge inspections. They have to. One bridge alone – the Newburgh Beacon Bridge –carries 25 million vehicle crossings a year. Since the 1920s, we’ve partnered with the authority to conduct annual and biennial bridge inspections and to develop bridge rehabilitation, repair, and improvement plans. And we’re on call when they need an expert available immediately for unexpected situations.

Our most thorough examinations of the Hudson River Bridges are the biennial bridge inspections required to satisfy FHWA regulations. For these intensive procedures, we call upon an array of tools and techniques. They range from rappelling, for a true hands-on visual look at the bridge’s exterior, to using ultra sound on bridge pins to detect potential defects. In alternate years, we perform maintenance inspections that provide the NYSBA with an accurate assessment of deficient areas from which they base their annual maintenance program.

Modjeski and Masters has enjoyed a long history with three of the six Hudson River Bridges. We designed the Mid-Hudson Bridge – recognized as one of the most beautiful bridges in America – as well as both spans of the Newburgh Beacon Bridge. Our unique first-hand knowledge allows us to perform bridge inspection services as efficiently as possible. That satisfies another mandate of the NYSBA – to reassure the public of the bridges’ safety as cost-effectively as possible.

Description

Tasks Performed

In-Depth Inspection

NBIS Inspection

Construction Support

Rehabilitation – Final Design

Bridge Geometry - Mid-Hudson Bridge

Length of Main Spans – 1,500 feet

Total Project Length – 3,000 feet

Lanes on Structure – three lanes plus a pedestrian walkway

Bridge Geometry - Bear Mountain Bridge

Length of Main Spans – 1,632 feet

Total Project Length – 2,225 feet

Lanes on Structure – two lanes plus pedestrian walkways on both sides

Bridge Geometry - Kingston-Rhinecliff Bridge

Length of Main Spans – 800 feet

Total Project Length – 7,793 feet

Lanes on Structure – two lanes

Bridge Geometry - Rip Van Winkle Bridge

Length of Main Spans – 800 feet

Total Project Length – 5,040 feet

Lanes on Structure – two lanes plus a pedestrian walkway

Bridge Geometry - Newburgh-Beacon Bridge - South Span

Length of Main Spans – 1,000 feet

Total Project Length – 7,789 feet

Lanes on Structure – three lanes

Bridge Geometry - Newburgh-Beacon Bridge - North Span

Length of Main Spans – 1,000 feet

Total Project Length – 7,855 feet

Lanes on Structure – three lanes

Testimonial

"...As General Consultant to the New York State Bridge Authority for the last 30 years, your insight and effective investigations have greatly assisted us..."- William J. Moreau, Chief Engineer, New York State Bridge Authority